Isomorphic
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Direction of current flow
Accepted answer
2 votes

Faraday's law fails here. Let's go back to basics. We use the Lorentz force. And what is happening is as the rod rotates, the charges in it rotate too. However, the rod is neutral so there is no net ...

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Does the displacement in the definition of work correspond to the displacement of the object or the point of application of the force?
2 votes

It is the displacement of the point on which the force is applied. This is it. That is the real definition, period. The books which do it otherwise are wrong. I would like you to read Resnick Halliday ...

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Infinite fringes in double-slit interference
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2 votes

Strictly according to Double Slit experiment calculations, yes infinite fringes are possible if (1) the slits are infinitesimal and placed infinitely apart, but actually, the fringes will be very ...

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Direction of reaction force and static friction by the floor on a body
2 votes

Your doubt is well found. It is actually the book which is wrong here in choice of words. Basically, according to the term "reaction", it should mean that the answer should be (3), but the book is ...

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Point object, Kinematics
1 votes

You can consider an object to be a point particle, when you only think of its translatory motion, means it is moving in 3-D like a point would, like, if a point particle moves around, it is so small ...

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Electrical gradient
1 votes

Charges at rest move when a force is applied on them and this is due to Newton's laws. Now to apply a force, we need a field, like electric/gravitational field. Each field acts upon certain ...

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Why is the space-time interval squared?
1 votes

The shortest euclidean distance between three points namely 1,2,3 follows that $dist(1,3)=dist(1,2)+dist(2,3)$. where $dist(x,y)$ is the vector between points x and y. Now we from daily ...

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What is wave particle duality?
1 votes

It was found through the law of dynamics we calculated and observed the particle to follow on a macroscopic scale failed miserably when applied to microscopic objects. The particle showed some ...

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Under what condition charges do not flow in closed circuit?
1 votes

Current is flow of charges - (1) Charges flow whenever there is an external $\vec E$ i.e. an $\vec E$ besides the charge's own field . So talking about electrostatic field $'\vec E$ $'$ which is ...

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Is it foolish to distinguish between covariant and contravariant vectors?
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There are vectors of a vector space(an abstract mathematical entitity). Then for a vector space there are corresponding dual spaces. An element of a dual space maps the element of the vector space to $...

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